The language of science has many words and phrases whose meaning either
changes in differing contexts or alters to reflect developments in a
given discipline. This book presents the authors' theories on using
'conceptual profiles' to make the teaching of context-dependent meanings
more effective. Developed over two decades, their theory begins with a
recognition of the coexistence in the students' discourse of those
alternative meanings, even in the case of scientific concepts such as
molecule, where the dissonance between the classical and modern views of
the same phenomenon is an accepted norm. What began as an alternative
model of conceptual change has evolved to incorporate a sociocultural
approach, by drawing on ideas such as situated cognition and Vygotsky's
influential concept of culturally located learning. Also informed by
pragmatist philosophy, the approach has grown into a well-rounded theory
of teaching and learning scientific concepts. The authors have taken the
opportunity in this book to develop their ideas further, anticipate and
respond to criticisms-that of relativism, for example-and explain how
their theory can be applied to analyze the teaching of core concepts in
science such as heat and temperature, life and biological adaptation.
They also report on the implementation of a research program that
correlates the responsiveness of their methodology to all the main
developments in the field of science education. This additional material
will inform academic discussion, review, and further enhancement of
their theory and research model.